150 • CliUCIFElLE. Uarbarea. 



B. Stricta, Andrz. In its varialile foliage not satisfactorily distinguishable from the jire- 

 coding : Uowers smaller, paler yellow, during anthesis closely aggregated and subcorymbose : 

 petals usually not over a third or half longer than the calyx : pods mostly appressed to the 

 elongated rhachis. — Andrz. in Bess. Enum. 72 ; Keichenb. Ic. Fl. (ierm. ii. 47. B. parvi- 

 Jiora, Fries, Novit. ed. 2, 207. B. vitlrjaris, var. stricta, Gray, Man. ed. 2, 35. — Same range 

 as tiie last, and eastward the commoner species. A noteworthy fruiting form nf this 

 species or perhaps distinct plant has been collected at Se.ittle, Wash., Piiwr. It lias 

 elongated rather loose racemes of very siiort erect pods (4 to 7 lines long), and bears a close 

 resemblance to specimens from Central France 



B. PR.ECOx, R. Br. 1. c. (Eakly Wixtkk Ckess, Scurvy Grass.) Very similar in liabit 

 and floral characters : radical leaves usually iuterru])tedly pinnate ; segments more numer- 

 ous, 4 to 8 pairs, commonly with smaller ones between the larger: siliques longer, often •!]-, 

 inches in length, larger and firmer in texture : valves more strongly carinate ; fruiting 

 pedicels very .stout. — Chapm. Fl. ed. 2, 606; Wats. & Coulter in Gray, Man. ed. 6, 71. — 

 Somewhat established in tlie Middle Atlantic States and southward, having escaped from 

 cultivation as a salad plant. (Introd. from Eu.) 



36. IODANTHUS, ToiT. & Gray. ('ItuSi^s, violet-colored, and av^09, 

 flower.) — A small AuKTican genus of rather doubtful ailinities ; but ou account 

 of its stigma elongated over the placenta?, its distinctly flattened jiods and nearly 

 accumbent cotyledons, not to be united with Thehjpodium, to which it has been 

 reduced.' — Fl. i. 72 (under Cheircnithus) ; Gray, Gen. 111. i. 133, t. 54 ; Proc. 

 Am. Acad. vi. 188; Benth. «& Hook. Gen. i. 70; Prantl, 1. c. 183. Under 

 Thelypodium, Wats. Bibl. Index, 73: Wats. & Coulter in Gray, Man. ed. 6, 

 72. — A single described sjDCcies, but probably with a Mexican congener. [By 

 B. L. RoiiiNSON.] 



I. pinnatifidus, Steud. Erect, slender, leafy, glabrous, often branched above : root a 

 cluster of tough fibres : radical leaves ovate, rounded at the base or cordate, slender-petioled ; 

 the cauline ovate-lanceolate, acuminate at each end, usually sharply and often doubly 

 serrate, sometimes merely repand ; the upper sessile by narrow auriculate bases; the lower 

 petiolate and occasionally pinnate, bearing 1 to 3 pairs of small leaflets near the base : 

 sepals li lines long, le.'ss than half the length of the spatulate .slender-clawed purple petals : 

 fruit 9 to 1.5 lines long, short-pedicelled, tipped with a slender style, widely spreading in 

 elongated racemes. — Nomencl. ed. 2, 812; Gray, Proc. Am. Acad. vi. 188; Wats. Bot. 

 King Exp. 19; Prantl, 1. c. I. hesperidoides, Torr. & Gray in Gray, Gen. 111. i. 134, t. 54, 

 & Man. 33 ; Chapm. Fl. 25. Ffesperis ;M'nna<//?rfa, Michx. Fl. ii. 31. Cheiranthus hesperi- 

 doides, Torr. & Gray, Fl. i. 72. Arnhis hesperidoides, Gray, Man. ed. 5, 68. — Rich .soil, 

 W. Pennsylvania, Porter, to Texas, Lindheimer, and northward to Minnesota; fl. June; fr. 

 July and August. 



37. DRYOPETALON. Gray. (Name from ^ph, an oak tree, the lobod 

 petals resembling an oak leaf in outline.) — A branching annual with lyrately 

 pinnatifid mostly radical leaves and pubescence of simple hairs. Petals white. — 

 PI. Wright, ii. 11. Dnjopetalum, Prantl in Engl. c<c Prantl, Nat. Pflanzenf. iii. 

 Ab. 2, 183. — A southwestern monotype. [By S. Watson.] 



D. runcinatum, Gray. A foot high, glabrous above, more or less villous below with 

 siircadiiig liairs (sometimes short and dense) : .segments of the leaves irregularly rounded to 

 oblong, coarsely and acutely or sinuately toothed, of the cauline leaves narrower: pedicels 

 of the elongating racemes alender, divaricate, usually equalling the flowers, in fruit 2 to 8 

 lines long: jjetals 5-7 -toothed, 2 to 3 lines long: pods very narrow, nearly straight, spread- 

 ing, 1 to U inches long. — PI. Wright, ii 12, t. 11 ; Torr. Bot. Mex. Bound. 32. — Moun- 

 tains of W. Texas. Thnrher ; S. Arizona, Wright, Thurber, Palmer, Greene, Parish, Pringle. 

 (The type from Chihuahua, Wriijht.) 



